CVE-2026-98594

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.21 %higher than 11% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

In the Linux kernel, the following vulnerability has been resolved:

tg3: clean up PHYLIB resources on probe failure

tg3_get_invariants() can register an MDIO bus and connect a PHY for USE_PHYLIB devices. If tg3_init_one() later fails, its common error path releases the mappings and netdev without undoing those PHYLIB resources.

Disconnect the PHY and unregister the MDIO bus before the remaining teardown. Guard PHY cleanup with USE_PHYLIB to match tg3_phy_init(), and call tg3_mdio_fini() unconditionally to match tg3_mdio_init(). The existing IS_CONNECTED and MDIOBUS_INITED flags make both helpers safe when initialization only completed partially.

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This issue was identified during our ongoing static-analysis research while reviewing kernel code.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.21 %
Percentile among all scored CVEs: 11
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Show 8 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98594",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "158d7abdae85e9ac43d99780c372d79c119f7626",
              "lessThan": "ce86d6929d03e6b0abcb781dfa50f9f0816bff78",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "158d7abdae85e9ac43d99780c372d79c119f7626",
              "lessThan": "a449eedb3b1eb5b8b1f5ed116a1bfe85eaaf81df",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "158d7abdae85e9ac43d99780c372d79c119f7626",
              "lessThan": "0844402326d4e48a28688f93ec6442e93bb442fa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "158d7abdae85e9ac43d99780c372d79c119f7626",
              "lessThan": "e766321288b507afb70d2bfef6ba443213329f79",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "d2abb0013b933d59ee441185df0eca9e8c0b33eb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "158d7abdae85e9ac43d99780c372d79c119f7626",
              "lessThan": "6515c41503eef849abd2c7364f34e4bb25110f90",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "b6c0c757c65893ad7bb17e8bcf33cdd8257d7b3d",
              "versionType": "git"
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            {
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              "lessThan": "a92e1a412c53dc0d9ad639e7abf8b3fc70a5b6ad",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/broadcom/tg3.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.27"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.27",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/broadcom/tg3.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:12.043",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0844402326d4e48a28688f93ec6442e93bb442fa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6515c41503eef849abd2c7364f34e4bb25110f90",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a449eedb3b1eb5b8b1f5ed116a1bfe85eaaf81df",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a92e1a412c53dc0d9ad639e7abf8b3fc70a5b6ad",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b6c0c757c65893ad7bb17e8bcf33cdd8257d7b3d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ce86d6929d03e6b0abcb781dfa50f9f0816bff78",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d2abb0013b933d59ee441185df0eca9e8c0b33eb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e766321288b507afb70d2bfef6ba443213329f79",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntg3: clean up PHYLIB resources on probe failure\n\ntg3_get_invariants() can register an MDIO bus and connect a PHY for\nUSE_PHYLIB devices. If tg3_init_one() later fails, its common error path\nreleases the mappings and netdev without undoing those PHYLIB resources.\n\nDisconnect the PHY and unregister the MDIO bus before the remaining\nteardown. Guard PHY cleanup with USE_PHYLIB to match tg3_phy_init(), and\ncall tg3_mdio_fini() unconditionally to match tg3_mdio_init(). The existing\nIS_CONNECTED and MDIOBUS_INITED flags make both helpers safe when\ninitialization only completed partially.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code."
    }
  ],
  "lastModified": "2026-10-19T10:19:20.620",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}